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Sorry I might have misunderstood, are you an "electrician" doing this for a paying customer or just mucking about with your own electrics?Not sure what you mean??????
Discuss Dodgy wiring in the UK Electrical Forum area at ElectriciansForums.net
Sorry I might have misunderstood, are you an "electrician" doing this for a paying customer or just mucking about with your own electrics?Not sure what you mean??????
You might need to ask one of the moderators but there is a trainee section you can post this sort of thing in, sorry I thought you were an actual electrician from your profile.Not worried about switch 2. Ceiling rose and switch 1. Black sleeved cpc is continuous with earth and so are the 2 neutrals at the switch. Please teach me as to why it is wired this way.
I am a newly qualified domestic installer. I am assuming you dont know the answer either then as you haven't given one. Without taking the whole circuit apart and checking every length of cable to see what goes where it's impossible to know what is going on. Clearly I'm the idiot and you must be the guide from your comment so please guide me.You might need to ask one of the moderators but there is a trainee section you can post this sort of thing in, sorry I thought you were an actual electrician from your profile.
That's what it boils down to mate. You will spend hours poking around some grotty loft trying to work out what some DIY'er has cobbled together, and yes, sometimes you will be better off starting from scratch, time-wise. I'm not trying to be funny, it's just how it is. The only relief is when you give them the bill.........Ok thanks for the insight. In the meantime I will investigate further.
That was my first thought but on doing R1/R2 it turns out that the cpc sleeved black is actually connected back to earth and so are the 2 actual neutrals in switch 1. They were still connected to earth with the entire 9 conductors separated at the ceiling so it tells me neutral and cpc are interconnected elsewhere.Looking at the first pic, to me it looks like that is the S/L cable and somebody has used the cpc as a neutral down to the switch position.
So we know the switch line cable cpc is connected to N on the ceiling position where is it connected at the switch.?That was my first thought but on doing R1/R2 it turns out that the cpc sleeved black is actually connected back to earth and so are the 2 actual neutrals in switch 1. They were still connected to earth with the entire 9 conductors separated at the ceiling so it tells me neutral and cpc are interconnected elsewhere.
Sleeved black again and connected to neutral which is also connected to earth. No idea where that neutral goes after that without starting to take the circuit apart. Customer can't afford to pay for full investigation as the job was only supposed to be changing the pendants as they are moving house and wanted to take other fittings with them.So we know the switch line cable cpc is connected to N on the ceiling position where is it connected at the switch.?
That was my first thought but on doing R1/R2 it turns out that the cpc sleeved black is actually connected back to earth and so are the 2 actual neutrals in switch 1. They were still connected to earth with the entire 9 conductors separated at the ceiling so it tells me neutral and cpc are interconnected elsewhere.
Done that, one of the 2 blacks at the switch is cpc sleeved with insulation from black conductor the other one is an actual neutral but it has continuity with earth even with all conductors at the ceiling separated. This is what make me think the interconnection is elsewhere in the circuit. I would need to dismantle the circuit bit by bit and do continuity on each section to find what's going on but like I said, I have spoken to the customer about the problem but they haven't got the budget to pay for and investigation that would probably take a whole day. I have told them of the risks and changed all light fitting to the standard plastic ones now so minimal risk but still a risk in my eyes.I would say at a guess, that cpc is connected at the switch position to earth hence your NE interconnection, just take the switch plate off and look.
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